Results 71 to 80 of about 263,801 (301)

Nonuniform irradiation of laser targets [PDF]

open access: yesPhysics Letters A, 1987
Smoothing of plasma ablated from a laser target under weakly nonuniform irradiation is discussed. Conduction is assumed restricted to a quasisteady layer enclosing the critical surface (large pellet or focal spot, and long, low-intensity, short-wavelength pulse). Light refraction can make the ablated plasma unstable.
Sanmartín Losada, Juan Ramón   +1 more
openaire   +3 more sources

Detection of laser-UV microirradiation-induced DNA photolesions by immunofluorescent staining [PDF]

open access: yes, 1980
A low-power laser-UV microbeam of wave-length 257 nm was used for microirradiation of a small part of the nucleus of Chinese hamster cells. Following fixation in interphase or in the subsequent metaphase indirect immunofluorescent staining was performed ...
Cremer, Christoph   +3 more
core   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

Laser irradiated foam targets: absorption and radiative properties [PDF]

open access: yes, 2018
An experimental campaign to characterize the laser radiation absorption of foam targets and the subsequent emission of radiation from the produced plasma was carried out in the ABC facility of the ENEA Research Center in Frascati (Rome).
Cipriani, Mattia   +10 more
core   +2 more sources

MELTING BY PULSED LASER IRRADIATION [PDF]

open access: yes, 1980
The phenomenon of melting produced by pulsed ruby-laser (lambda = 0.694 ..mu..m) irradiation has been investigated. Removal of dopant precipitates, dislocations, and loops during laser irradiation provides clear evidence of melting. The depth of melting can be determined as a function of laser parameters (energy density and pulse duration) from the ...
Narayan, J., White, C.W.
openaire   +1 more source

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

Photoluminescence of hexagonal boron nitride: effect of surface oxidation under UV-laser irradiation

open access: yes, 2008
We report on the UV laser induced fluorescence of hexagonal boron nitride (h-BN) following nanosecond laser irradiation of the surface under vacuum and in different environments of nitrogen gas and ambient air.
Andrei V. Kanaev   +45 more
core   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

The relevance of point defects in studying silica-based materials from bulk to nanosystems [PDF]

open access: yes, 2019
The macroscopic properties of silica can be modified by the presence of local microscopic modifications at the scale of the basic molecular units (point defects).
Agnello S.   +4 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy